• Infectious salmon anemia (ISA) is a serious and contagious viral disease in salmon, and has also been detected in farmed rainbow trout and wild sea trout.
  • The virus primarily attacks the cell layer (endothelium) that covers the inside of blood vessels and the heart.
  • The virus is in the same family as the flu virus
  • Since 1993, there have been an average of 10 outbreaks of ISA per year in Norway

Sources: Norwegian Veterinary Institute and Norwegian Food Safety Authority

A growing number of infectious salmon anemia (ISA) outbreaks is raising concern in Norway.